Information About Spresense High-Resolution Recording

I'd like to record a high resolution on Spresense.

·I want to obtain a frequency up to 80 kHz by recording at 192 kHz/24 bit

Product Configuration
·Spresense main board + expansion board
·MEMS Analog Microphone (↓'s product)
https://www.switch-science.com/products/5462

I changed some of the recorder.wav in the sketch example.
Sound.wav output to SD card is not working properly (capacity 1KB)
Sound.wav will output normally if the sketch is operated unchanged
(1.8MB capacity)

theAudio->setRecorderMode in recorder.wav I set the buffer size to 500kb to 1028kb of sprense memory as documented, but I would appreciate it if you could tell me the possible cause of the high resolution.

Changes
/static constuint32_recoding_sampling_rate=48000;/
static constuint32_trecoding_sampling_rate=192000;

/static constuint8_trecoding_bit_length=16;/
static constuint8_trecoding_bit_length=24;

theAudio->initRecorder(AS_CODECTYPE_WAV,
"/mnt/sd0/BIN",
/recoding_sampling_rate,
recoding_bit_length,
recoding_channel_number/
AS_SAMPLINGRATE_192000,
AS_BITLENGTH_24,
AS_CHANNEL_MONO);
puts("Init Recorder!");

/theAudio->setRecorderMode(AS_SETRECDR_STS_INPUTDEVICE_MIC);/
TheAudio->setRecorderMode(AS_SETRECDR_STS_INPUTDEVICE_MIC, (500*1028));←Changing did not work